Home / 5,408.26-8,109.50-1,659.38

Finding the Fourth Proportional to 5,408.26, 8,109.50 and 1,659.38

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Solution

The fourth proportional to 5,408.26, 8,109.50 and 1,659.38 is: 2,488.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,408.26 : 8,109.50 = 1,659.38 : x
  2. Step 2: Convert to fraction form
    5,408.26/8,109.50 = 1,659.38/x
  3. Step 3: Cross multiply
    5,408.26x = 8,109.50 × 1,659.38
  4. Step 4: Simplify right side
    5,408.26x = 13,456,733.81
  5. Step 5: Solve for x
    x = 13,456,733.81/5,408.26
  6. Step 6: Final answer
    x = 2,488.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.